从Java中的队列中删除元素
要从队列中删除元素，请使用remove()方法。
首先，设置一个队列并插入一些元素-
Queue<String> q = new LinkedList<String>();
q.offer("abc");
q.offer("def");
q.offer("ghi");
q.offer("jkl");
q.offer("mno");
q.offer("pqr");
q.offer("stu");
q.offer("vwx");删除第一个元素-
System.out.println("Queue head = " + q.element());
System.out.println("Removing element from queue = " + q.remove());以下是一个例子-
示例
import java.util.LinkedList;
import java.util.Queue;
public class Demo {
public static void main(String[] args) {
Queue<String> q = new LinkedList<String>();
q.offer("abc");
q.offer("def");
q.offer("ghi");
q.offer("jkl");
q.offer("mno");
q.offer("pqr");
q.offer("stu");
q.offer("vwx");
System.out.println("Queue head = " + q.element());
System.out.println("Removing element from queue = " + q.remove());
System.out.println("\nRemaining Queue elements...");
Object ob;
while ((ob = q.poll()) != null) {
System.out.println(ob);
}
}
}输出结果
Queue head = abc Removing element from queue = abc Queue head now = abc Remaining Queue elements... def ghi jkl mno pqr stu vwx
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